Welcome to Sherpa, Daniel Reichelt. Initialization of framework underway. The local time is Thu Nov 30 10:04:34 2023. Run_Parameter::Init(): Setting memory limit to 503.276 GB. Random::SetSeed(): Seed set to 3060 ----------------------------------------------------------------------------- ----------- Event generation run with SHERPA started ....... ----------- ----------------------------------------------------------------------------- ................................................ | + ................................................ || | + + ................................... .... | | / + ................. ................ _,_ | .... || +| + + ............................... __.' ,\| ... || / +| + .............................. ( \ \ ... | | | + + \ + ............................. ( \ -/ .... || + | + ........ ................... (~~~~~~~~~## + + + ............................. ~~(! '~~~~~~~ \ + + + + ............................... `~~~QQQQQDb // | + + + + ........................ .......... IDDDDP|| \ + + + + + + .................................... IDDDI|| \ + .................................... IHD HD|| \ + + + + + + + + ................................... IHD ##| :-) + +\ + ......... ............... ......... IHI ## / / + + + + +\ + ................................... IHI/ / / + + + + + ................................... ## | | / / + + + + / + ....................... /TT\ ..... ##/ /// / + + + + + + +/ + ......................./TTT/T\ ... /TT\/\\\ / + + + + + + +/ \ + ....................../TTT/TTTT\...|TT/T\\\/ + ++ + / ----------------------------------------------------------------------------- SHERPA version 2.2.15 (Cho Oyu) Authors: Enrico Bothmann, Stefan Hoeche, Frank Krauss, Silvan Kuttimalai, Marek Schoenherr, Holger Schulz, Steffen Schumann, Frank Siegert, Korinna Zapp Former Authors: Timo Fischer, Tanju Gleisberg, Hendrik Hoeth, Ralf Kuhn, Thomas Laubrich, Andreas Schaelicke, Jan Winter This program uses a lot of genuine and original research work by other people. Users are encouraged to refer to the various original publications. Users are kindly asked to refer to the documentation published under JHEP 02(2009)007 Please visit also our homepage http://sherpa.hepforge.org for news, bugreports, updates and new releases. ----------------------------------------------------------------------------- Git branch rel-2-2-15, revision 9f988e9b9e17ef2f1eee27b92ac20c73c969aec6. ===> DIRE/Shower has local modifications <=== Beam_Spectra_Handler : type = Monochromatic*Monochromatic for P+ ((6500,0,0,6500)) and P+ ((6500,0,0,-6500)) WARNING: M_TOP=0 replacing with SHERPA top mass: M_TOP=173.21 PDF set 'NNPDF30NNLO' loaded for beam 1 (P+). WARNING: M_TOP=0 replacing with SHERPA top mass: M_TOP=173.21 PDF set 'NNPDF30NNLO' loaded for beam 2 (P+). Initialized the ISR: (SF)*(SF) WARNING: M_TOP=0 replacing with SHERPA top mass: M_TOP=173.21 WARNING: M_TOP=0 replacing with SHERPA top mass: M_TOP=173.21 Standard_Model::FixEWParameters(EW_SCHEME=1){ 288:1./aqed->Default()=128.802 289:csin2thetaW=(0.222928,-0.00110708) 290:cvev=(243.034,-3.75493) } One_Running_AlphaS::One_Running_AlphaS() { Setting \alpha_s according to PDF perturbative order 2 \alpha_s(M_Z) = 0.118 } One_Running_AlphaS::One_Running_AlphaS() { Setting \alpha_s according to PDF perturbative order 2 \alpha_s(M_Z) = 0.118 } List of Particle Data IDName kfc MASS[] WIDTH[] STABLE[] MASSIVE[] ACTIVE[] YUKAWA[] d 1 0.01 0 1 0 1 0 u 2 0.005 0 1 0 1 0 s 3 0.2 0 1 0 1 0 c 4 1.42 0 1 0 1 0 b 5 4.8 0 1 0 1 0 t 6 173.21 2 0 1 1 173.21 e- 11 0.000511 0 1 0 1 0 ve 12 0 0 1 0 1 0 mu- 13 0.105 0 1 0 1 0 vmu 14 0 0 1 0 1 0 tau- 15 1.777 2.26735e-12 0 0 1 0 vtau 16 0 0 1 0 1 0 G 21 0 0 1 0 1 0 P 22 0 0 1 0 1 0 Z 23 91.1876 2.4952 0 1 1 91.1876 W+ 24 80.385 2.085 0 1 1 80.385 h0 25 125 0.00407 0 1 1 125 List of Particle Containers IDName kfc Constituents l 90 {e-,e+,mu-,mu+,tau-,tau+} v 91 {ve,veb,vmu,vmub,vtau,vtaub} j 93 {d,db,u,ub,s,sb,c,cb,b,bb,G} Q 94 {d,db,u,ub,s,sb,c,cb,b,bb} r 99 {d,db,u,ub,s,sb,c,cb,b,bb,G} Library_Loader::LoadLibrary(): Failed to load library 'libSherpaHepMCOutput.so'. Hadron_Init::Init(): Initializing kf table for hadrons. Initialized the Fragmentation_Handler. Initialized the Soft_Collision_Handler. CS_Shower::CS_Shower(): Set respect Q2 mode 0 CS_Shower::CS_Shower(): Set color setter mode 0 CS_Shower::CS_Shower(): Set respect Q2 mode 0 CS_Shower::CS_Shower(): Set color setter mode 0 Initialized the Shower_Handler. +-----------------------------------------+ | X X X XXXX XXX XXX XXX | | X X XX XX X X X X X X | | X X X X X XXX X XXX X X XXX XXX | | XXXXX X X X X X X X X X | | X X X X XXXX XXX XXX XXX | +-----------------------------------------+ | please cite: JHEP 0202:044,2002 | +-----------------------------------------+ ME_Generators::ME_Generators(): Try loading 'OpenLoops' from 'libSherpaOpenLoops'. Matrix_Element_Handler::Matrix_Element_Handler(): Set pilot run mode to 1. ME_Generator_Base::SetPSMasses(): Massive PS flavours for Comix: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) +----------------------------------+ | | | CCC OOO M M I X X | | C O O MM MM I X X | | C O O M M M I X | | C O O M M I X X | | CCC OOO M M I X X | | | +==================================+ | Color dressed Matrix Elements | | http://comix.freacafe.de | | please cite JHEP12(2008)039 | +----------------------------------+ ME_Generator_Base::SetPSMasses(): Massive PS flavours for Amegic: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Amegic::Initialize(): Set gauge 1. Initialising OpenLoops generator from /mt/home/dreichelt/hepsoftware/src/OpenLoops #################################################################### # ___ ___ ____ _ _ __ __ ___ __ ___ # # / \ |__| |__ |\ | | / \ / \ |__| /__ __/ # # \___/ | |___ | \| |__ \__/ \__/ | __/ /__ # # You are using OpenLoops 2 to evaluate loop amplitudes # # F. Buccioni, J.-N. Lang, J. Lindert, P. Maierhoefer, # # S. Pozzorini, M. Zoller, H. Zhang # # Eur.Phys.J. C79 (2019) no.10, 866 # # arXiv:1907.13071 # #################################################################### Matrix_Element_Handler::BuildProcesses(): Looking for processes ................................ done ( 24 MB, 0s / 0s ). Matrix_Element_Handler::InitializeProcesses(): Performing tests done ( 25 MB, 0s / 0s ). Initialized the Matrix_Element_Handler for the hard processes. Initialized the Beam_Remnant_Handler. Hadron_Decay_Map::Read: Initializing HadronDecays.dat. This may take some time. Initialized the Hadron_Decay_Handler, Decay model = Hadrons ME_Generator_Base::SetPSMasses(): Massive PS flavours for Amisic: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Simple_Chain::InitializeProcessList(): Init processes ................................................................................................................................................................................ done. Grid_Creator::ReadInGrid(): Reading grid ................................................................................................................................................................................ done. Simple_Chain::CalculateTotal(): Result is { \sigma_{hard} = 85.0292 mb at PT_{min} = 3.39111 GeV } Profile_Function_Base::CalculateOMean(4.99237): Results are { k = 23.7135 <\tilde{O}> = 0.210525 } Initialized the Multiple_Interactions_Handler (MI_Handler). Initialized the Soft_Photon_Handler. Variations::InitialiseParametersVector(){ Number of variations: 7 Named variations: MUR0.5_MUF0.5_PDF261000_PSMUR0.5_PSMUF0.5 MUR0.5_MUF1_PDF261000_PSMUR0.5_PSMUF1 MUR1_MUF0.5_PDF261000_PSMUR1_PSMUF0.5 MUR1_MUF1_PDF261000 MUR1_MUF2_PDF261000_PSMUR1_PSMUF2 MUR2_MUF1_PDF261000_PSMUR2_PSMUF1 MUR2_MUF2_PDF261000_PSMUR2_PSMUF2 } Read in channels from directory : Results/Amegic/MC_2_2__j__j__j__j Process_Group::CalculateTotalXSec(): Calculate xs for '2_2__j__j__j__j' (Amegic) 2_2__j__j__j__j : 1.40119e+08 pb +- ( 1.07296e+06 pb = 0.765747 % )  exp. eff: 5.86561e-07 % reduce max for 2_2__j__j__j__j to 0.00494632 ( eps = 0.001 ) ---------------------------------------------------------- -- SHERPA generates events with the following structure -- ---------------------------------------------------------- Perturbative : Signal_Processes Perturbative : Hard_Decays Perturbative : Jet_Evolution:CSS Perturbative : Lepton_FS_QED_Corrections:Photons Perturbative : Multiple_Interactions:Amisic Perturbative : Minimum_Bias:Off Hadronization : Beam_Remnants Hadronization : Hadronization:Ahadic Hadronization : Hadron_Decays Unknown : Analysis : Rivet --------------------------------------------------------- Event 1 ( 11s elapsed / 13d 15h 29m 48s left ) -> ETA: Thu Dec 14 01:34 XS = 17394.1 pb +- ( 17394.1 pb = 100 % ) Event 2 ( 11s elapsed / 6d 21h 16m 28s left ) -> ETA: Thu Dec 07 07:21 XS = 34788.3 pb +- ( 0 pb = 0 % ) Event 3 ( 11s elapsed / 4d 14h 38m 41s left ) -> ETA: Tue Dec 05 00:43 XS = 52182.4 pb +- ( -nan pb = -2.14748e+07 % ) Event 4 ( 12s elapsed / 3d 11h 19m 48s left ) -> ETA: Sun Dec 03 21:24 XS = 69576.6 pb +- ( -nan pb = -2.14748e+07 % ) Event 5 ( 12s elapsed / 2d 18h 53m 7s left ) -> ETA: Sun Dec 03 04:58 XS = 86970.7 pb +- ( -nan pb = -2.14748e+07 % ) Event 6 ( 12s elapsed / 2d 7h 55m 21s left ) -> ETA: Sat Dec 02 18:00 XS = 104365 pb +- ( -nan pb = -2.14748e+07 % ) Event 7 ( 12s elapsed / 2d 10m 16s left ) -> ETA: Sat Dec 02 10:15 XS = 121759 pb +- ( -nan pb = -2.14748e+07 % ) Event 8 ( 12s elapsed / 1d 18h 15m 12s left ) -> ETA: Sat Dec 02 04:20 XS = 139153 pb +- ( -nan pb = -2.14748e+07 % ) Event 9 ( 12s elapsed / 1d 13h 53m 52s left ) -> ETA: Fri Dec 01 23:59 XS = 156547 pb +- ( -nan pb = -2.14748e+07 % ) Event 10 ( 12s elapsed / 1d 10h 16m 27s left ) -> ETA: Fri Dec 01 20:21 XS = 173941 pb +- ( -nan pb = -2.14748e+07 % ) Event 20 ( 13s elapsed / 18h 3m 7s left ) -> ETA: Fri Dec 01 04:08 XS = 347883 pb +- ( -nan pb = -2.14748e+07 % ) Event 30 ( 13s elapsed / 12h 35m 19s left ) -> ETA: Thu Nov 30 22:40 XS = 1.78045e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 40 ( 14s elapsed / 9h 52m 15s left ) -> ETA: Thu Nov 30 19:57 XS = 3.76684e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 50 ( 14s elapsed / 8h 14m 45s left ) -> ETA: Thu Nov 30 18:19 XS = 4.47196e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 60 ( 15s elapsed / 7h 6m 7s left ) -> ETA: Thu Nov 30 17:11 XS = 3.26515e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 70 ( 15s elapsed / 6h 19m 58s left ) -> ETA: Thu Nov 30 16:25 XS = 3.06831e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 80 ( 16s elapsed / 5h 48m 40s left ) -> ETA: Thu Nov 30 15:53 XS = 3.82282e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 90 ( 17s elapsed / 5h 19m 42s left ) -> ETA: Thu Nov 30 15:24 XS = 4.34879e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 100 ( 17s elapsed / 4h 57m 12s left ) -> ETA: Thu Nov 30 15:02 XS = 4.11205e+06 pb +- ( -nan pb = -2.14748e+07 % ) Event 200 ( 23s elapsed / 3h 15m 26s left ) -> ETA: Thu Nov 30 13:20 XS = 5.17085e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 300 ( 29s elapsed / 2h 42m 37s left ) -> ETA: Thu Nov 30 12:48 XS = 8.281e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 400 ( 35s elapsed / 2h 26m 37s left ) -> ETA: Thu Nov 30 12:32 XS = 6.63053e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 500 ( 41s elapsed / 2h 16m 12s left ) -> ETA: Thu Nov 30 12:21 XS = 7.46907e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 600 ( 46s elapsed / 2h 9m 23s left ) -> ETA: Thu Nov 30 12:15 XS = 9.53115e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 700 ( 52s elapsed / 2h 4m 23s left ) -> ETA: Thu Nov 30 12:10 XS = 8.50145e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 800 ( 58s elapsed / 2h 35s left ) -> ETA: Thu Nov 30 12:06 XS = 8.51122e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 900 ( 1m 3s elapsed / 1h 56m 25s left ) -> ETA: Thu Nov 30 12:02 XS = 9.75595e+07 pb +- ( -nan pb = -2.14748e+07 % ) Event 1000 ( 1m 9s elapsed / 1h 54m 10s left ) -> ETA: Thu Nov 30 12:00 XS = 1.03767e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 2000 ( 2m 6s elapsed / 1h 43m 19s left ) -> ETA: Thu Nov 30 11:50 XS = 1.35278e+08 pb +- ( -nan pb = -2.14748e+07 % ) Decay_Channel::GenerateKinematics(B+ --> D*(2007) D*(2010)+b K+ pi+ ) warning: d\Gamma(x)=3.48805e-06 > max(d\Gamma)=8.179e-07 Event 3000 ( 3m 6s elapsed / 1h 40m 29s left ) -> ETA: Thu Nov 30 11:48 XS = 1.41939e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 4000 ( 4m 4s elapsed / 1h 37m 56s left ) -> ETA: Thu Nov 30 11:46 XS = 1.42274e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 5000 ( 5m 2s elapsed / 1h 35m 46s left ) -> ETA: Thu Nov 30 11:45 XS = 1.50097e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 6000 ( 6m 3s elapsed / 1h 34m 55s left ) -> ETA: Thu Nov 30 11:45 XS = 1.47525e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 7000 ( 7m 2s elapsed / 1h 33m 35s left ) -> ETA: Thu Nov 30 11:45 XS = 1.47246e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 8000 ( 8m 5s elapsed / 1h 33m 5s left ) -> ETA: Thu Nov 30 11:46 XS = 1.38777e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 9000 ( 9m 6s elapsed / 1h 32m 9s left ) -> ETA: Thu Nov 30 11:46 XS = 1.37607e+08 pb +- ( -nan pb = -2.14748e+07 % ) Event 10000 ( 10m 4s elapsed / 1h 30m 36s left ) -> ETA: Thu Nov 30 11:45 XS = 1.49549e+08 pb +- ( -nan pb = -2.14748e+07 % ) Decay_Channel::GenerateKinematics(B --> D*(2007) D*(2007)b K+ pi+b ) warning: d\Gamma(x)=3.06873e-06 > max(d\Gamma)=8.556e-07 Decay_Channel::GenerateKinematics(Omega(c) --> ss_1 s sb u ): Rejected decay kinematics 10000 times. This indicates a wrong maximum. Will accept kinematics. Event 20000 ( 20m 2s elapsed / 1h 20m 11s left ) -> ETA: Thu Nov 30 11:45 XS = 1.51394e+08 pb +- ( -nan pb = -2.14748e+07 % ) Decay_Channel::GenerateKinematics(B+ --> D*(2007) D+b K+ pi+ ) warning: d\Gamma(x)=1.79607e-06 > max(d\Gamma)=1.294e-06 Event 30000 ( 30m 16s elapsed / 1h 10m 38s left ) -> ETA: Thu Nov 30 11:45 XS = 1.45516e+08 pb +- ( -nan pb = -2.14748e+07 % ) Blob_List::FourMomentumConservation(): (0x3459468) Four Momentum is not conserved. p_{in} = (13000,0,0,0) vs. p_{out} = (13002.6,-1.07066,-0.216542,2.3994), diff = (2.64219,-1.07066,-0.216542,2.3994). Decay_Channel::GenerateKinematics(B+ --> D*(2007)b D+ K pi ) warning: d\Gamma(x)=3.07384e-06 > max(d\Gamma)=1.31e-06 Event 40000 ( 40m 14s elapsed / 1h 21s left ) -> ETA: Thu Nov 30 11:45 XS = 1.47777e+08 pb +- ( -nan pb = -2.14748e+07 % ) Blob_List::FourMomentumConservation(): (0x3459468) Four Momentum is not conserved. p_{in} = (13000,0,0,0) vs. p_{out} = (12996.5,-0.375239,-2.0864,-1.86515), diff = (-3.54054,-0.375239,-2.0864,-1.86515). Decay_Channel::GenerateKinematics(B+ --> D*(2007)b D*(2010)+ K pi ) warning: d\Gamma(x)=2.85545e-06 > max(d\Gamma)=8.264e-07 Event 50000 ( 50m 20s elapsed / 50m 20s left ) -> ETA: Thu Nov 30 11:45 XS = 1.49233e+08 pb +- ( -nan pb = -2.14748e+07 % ) Decay_Channel::GenerateKinematics(B --> D*(2007)b D*(2010)+ K pi+b ) warning: d\Gamma(x)=2.72466e-06 > max(d\Gamma)=7.635e-07 Event 60000 ( 1h 17s elapsed / 40m 11s left ) -> ETA: Thu Nov 30 11:45 XS = 1.50549e+08 pb +- ( -nan pb = -2.14748e+07 % ) Decay_Channel::GenerateKinematics(B --> D D*(2010)+b K+ pi ) warning: d\Gamma(x)=2.165e-06 > max(d\Gamma)=1.375e-06 Event 70000 ( 1h 10m 18s elapsed / 30m 7s left ) -> ETA: Thu Nov 30 11:45 XS = 1.49701e+08 pb +- ( -nan pb = -2.14748e+07 % ) ...... Cluster_Part::TestDecay fails for ------------------------------------------------------------- Cluster [cluster, 127, 0] ((112.594,-4.37157,6.21127,-112.268), mass = 3.93747, y = -3.26893) : l : ss_1b (76.1866,-1.97231,4.61381,-76.0063) 1.5, kt_max = 0, pt = 5.01769, y = -3.36938 l : ss_1 (36.4073,-2.39926,1.59746,-36.262) 1.5, kt_max = 0, pt = 2.88242, y = -3.10746 Ahadic::Hadronize(): Momentum imbalance: (112.594,-4.37157,6.21127,-112.268) Decay_Channel::GenerateKinematics(B+ --> D*(2010)+ D*(2010)+b K pi+ ) warning: d\Gamma(x)=2.53203e-06 > max(d\Gamma)=8.99853e-07 Decay_Channel::GenerateKinematics(B+ --> D Db K+ pi ) warning: d\Gamma(x)=1.86797e-06 > max(d\Gamma)=1.295e-06 Event 80000 ( 1h 20m 19s elapsed / 20m 4s left ) -> ETA: Thu Nov 30 11:45 XS = 1.49294e+08 pb +- ( -nan pb = -2.14748e+07 % ) Blob_List::FourMomentumConservation(): (0x3459468) Four Momentum is not conserved. p_{in} = (13000,0,0,0) vs. p_{out} = (13045.6,1.61033,-1.58894,-45.5834), diff = (45.6395,1.61033,-1.58894,-45.5834). Decay_Channel::GenerateKinematics(B+ --> D D+b K+ pi+ ) warning: d\Gamma(x)=2.01812e-06 > max(d\Gamma)=1.206e-06 ...... Cluster_Part::TestDecay fails for ------------------------------------------------------------- Cluster [cluster, 67, 0] ((106.158,-0.4499,1.98288,-106.074), mass = 3.69963, y = -3.91748) [> 66] [< 68] : l : ss_1b (67.3532,0.554234,0.340061,-67.3333) 1.5, kt_max = 0.496906, pt = 0.650243, y = -4.41138 l : ud_1 (38.8048,-1.00413,1.64282,-38.7407) 1.125, kt_max = 0.366666, pt = 1.92539, y = -3.54888 Ahadic::Hadronize(): Momentum imbalance: (106.158,-0.4499,1.98288,-106.074) Event 90000 ( 1h 30m 31s elapsed / 10m 3s left ) -> ETA: Thu Nov 30 11:45 XS = 1.50662e+08 pb +- ( -nan pb = -2.14748e+07 % ) Remnant_Base::AdjustKinematics(): Parton (0x36fcb70) has non-positive energy (-nan,-nan,-nan,-nan) Blob_List::FourMomentumConservation(): (0x3459468) Four Momentum is not conserved. p_{in} = (13000,0,0,0) vs. p_{out} = (12999.8,-0.0136408,-0.0200967,-0.165393), diff = (-0.167173,-0.0136408,-0.0200967,-0.165393). Decay_Channel::GenerateKinematics(Omega(b)- --> ss_1 c cb s ) warning: d\Gamma(x)=3.98861e-14 > max(d\Gamma)=2.716e-14 Event 100000 ( 6045 s total ) = 1.42937e+06 evts/day In Event_Handler::Finish : Summarizing the run may take some time. Rivet_Interface::Finish(Analysis_CSS/3060){ } +--------------------------------------------------------------+ | | | Total XS is 1.46016e+08 pb +- ( -nan pb = -2.14748e+07 % ) | | | +--------------------------------------------------------------+ Return_Value::PrintStatistics(): Statistics { Generated events: 100000 New events { From "Beam_Remnants": 4 (100133) -> 0 % From "Jet_Evolution:CSS": 1 (833690) -> 0 % } Retried events { From "Beam_Remnants": 61 (100133) -> 0 % From "Hadronization:Ahadic": 68 (133106) -> 0 % From "Jet_Evolution:CSS": 6982 (833690) -> 0.8 % } Retried phases { From "Hadron_Decay_Handler::RejectExclusiveChannelsFromFragmentation": 15668 (0) -> 15668. } Retried methods { From "Decay_Channel::GenerateKinematics": 33 (43898393) -> 0 % } } Time: 1h 41m 7s on Thu Nov 30 11:45:41 2023 (User: 1h 40m 26s, System: 2s, Children User: 0s, Children System: 0s)